http://www.sunflower-solar.com/
Version 11.04
Subjec
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e 2011 SUNF
LOWER SOLAR
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5.6
Install the single direction valve
This valve is added especially for our customers, because not many manufacturers add this valve. Before
you install it please wrap Teflon tape and tighten it with wrench. It could protect the water tank and pipe
line if the cold water inlet valve is turn off or city water supply is cut off suddenly, because it keeps hot
solar heated water from backing up into your house plumbing through the cold water line.
Note:
For each connector, customers yourselves need to wrap Teflon tape on it to prevent leakage, and
make sure that each one is tighten before adding water into the water tank.
5.7
Check and Inspection
After you finish the assembly of the solar water heater, please check whether every part is ok, after
inspection, please tighten every bolt. Before you turn on water inlet valve, please make sure that every
connector is wrapped with Teflon tap and it is tighten. If any leakage, please turn off the water inlet valve
and drain the water, wrap more Teflon tap on the leakage connector then install and tighten with wrench.
6
Lightning protection
The solar water heater should have lightning protection to avoid lightening damage. A lightning rod is
necessary which should be 1.5m higher and 3 m farther away from the solar water heater. For any problems
that involve plumbing or electrical connections the services of a qualified professional must be employed.
Warning:
When in thunderstorm weather please don't use solar water heaters.
7
Precautions
1)
When installing your solar water heater in a cold climate where freezing is possible, please put an
insulation layer around the pipes which are outside the building. You may want to add additional
protection in the form of a thermostatically controlled heat tape.
2)
If you use the optional electric immersion heater, the person who installs the electric heater must be a
qualified electrician. You need to use an electricity leakage protection plug and everything should be
grounded.
8
Max. working pressure
This is a pressurized type solar water heater. The maximum working pressure is 6 bar
(87PSI).
